CVE-2013-4247

high

Description

Off-by-one error in the build_unc_path_to_root function in fs/cifs/connect.c in the Linux kernel before 3.9.6 allows remote attackers to cause a denial of service (memory corruption and system crash) via a DFS share mount operation that triggers use of an unexpected DFS referral name length.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1fc29bacedeabb278080e31bb9c1ecb49f143c3b

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.9.6

http://www.openwall.com/lists/oss-security/2013/08/14/10

https://bugzilla.redhat.com/show_bug.cgi?id=998401

https://github.com/torvalds/linux/commit/1fc29bacedeabb278080e31bb9c1ecb49f143c3b

Details

Source: MITRE

Published: 2013-08-25

Updated: 2013-08-27

Type: CWE-189

Risk Information

CVSS v2

Base Score: 7.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 10

Severity: HIGH